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ClinicalTrials.gov public records Last synced Oct 11, 2026, 10:18 AM EDT

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Showing 97–120 of 313 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Ventricular Arrhythmias Clear all
Completed Not applicable Interventional

Functional Outcomes in CondUction System Pacing and Right Ventricular Synchrony (FOCUS-Right)

NCT06601322
View directory record Official record
Conditions
Left Branch Bundle Block, RV - Right Ventricular Abnormality
Interventions
Pacemaker Interrogation and Electrocardiogram (ECG):, Cardiopulmonary Exercise Test (CPET) and Exercise Stress Cardiac Magnetic Resonance (ExeCMR, Continuous pacemaker telemetry (CPT)
Other
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 12, 2026 · Synced Oct 11, 2026, 10:18 AM EDT
Completed No phase listed Observational

INSIGHTS ICD Registry

NCT00279968
View directory record Official record
Conditions
Ventricular Tachycardia, Ventricular Fibrillation
Interventions
ICD
Device
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
1,326 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
44
States / cities
Little Rock, Arkansas • Fountain Valley, California • Poway, California + 41 more
Source: ClinicalTrials.gov public record
Updated Dec 28, 2007 · Synced Oct 11, 2026, 10:18 AM EDT
Terminated No phase listed Observational

Activation Timing and Atrial Fibrillation

NCT02063191
View directory record Official record
Conditions
Arrhythmias, Cardiac, Atrial Fibrillation, Bundle Branch Block
Interventions
Not listed
Lead sponsor
Essentia Health
Other
Eligibility
18 Years and older
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
1
States / cities
Duluth, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 4, 2014 · Synced Oct 11, 2026, 10:18 AM EDT
Completed No phase listed Observational

Precision Event Monitoring for Patients With Heart Failure Using HeartLogic

NCT03579641
View directory record Official record
Conditions
Heart Failure, Defibrillators, Implantable, Monitoring, Physiologic, Cardiac Resynchronization Therapy, Cardiovascular Disease, Heart Disease
Interventions
HeartLogic Sensors
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
2,184 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
56
States / cities
Birmingham, Alabama • Jonesboro, Arkansas • Little Rock, Arkansas + 48 more
Source: ClinicalTrials.gov public record
Updated Oct 25, 2022 · Synced Oct 11, 2026, 10:18 AM EDT
Completed Not applicable Interventional Results available

Intramural Needle Ablation for the Treatment of Refractory Ventricular Arrhythmias

NCT03204981
View directory record Official record
Conditions
Ventricular Arrythmia
Interventions
Intramural Needle Ablation, Ablation
Device · Procedure
Lead sponsor
Vivek Reddy
Other
Eligibility
15 Years and older
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 12, 2021 · Synced Oct 11, 2026, 10:18 AM EDT
Terminated Phase 4 Interventional Results available

Early Ablation Therapy for the Treatment of Ischemic Ventricular Tachycardia in Patients With Implantable Cardioverter Defibrillators

NCT01557842
View directory record Official record
Conditions
Ventricular Tachycardia, Ischemic
Interventions
Drug Treatment, Catheter Ablation
Drug · Device
Lead sponsor
Biosense Webster, Inc.
Industry
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
23
States / cities
Los Angeles, California • San Francisco, California • Aurora, Colorado + 14 more
Source: ClinicalTrials.gov public record
Updated Jun 8, 2017 · Synced Oct 11, 2026, 10:18 AM EDT
Recruiting Not applicable Interventional

Left vs Left Randomized Clinical Trial

NCT05650658
View directory record Official record
Conditions
Heart Failure, Heart Failure With Reduced Ejection Fraction, AV Block, LBBB, RBBB, Intraventricular Conduction Delay, Pacing-Induced Cardiomyopathy
Interventions
His/LBBP, BiVP
Device
Lead sponsor
Baylor College of Medicine
Other
Eligibility
18 Years and older
Enrollment
2,136 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
57
States / cities
Gilbert, Arizona • Tucson, Arizona • Little Rock, Arkansas + 46 more
Source: ClinicalTrials.gov public record
Updated Oct 2, 2025 · Synced Oct 11, 2026, 10:18 AM EDT
Terminated Not applicable Interventional Results available

Advanced Reperfusion Strategies for Refractory Cardiac Arrest

NCT03880565
View directory record Official record
Conditions
Cardiac Arrest, Extracorporeal Membrane Oxygenation Complication, Ventricular Fibrillation, Pulseless Ventricular Tachycardia, Out-Of-Hospital Cardiac Arrest
Interventions
Early Extracorporeal Membrane Oxygenation (ECMO) Facilitated Resuscitation, Standard Advanced Cardiac Life Support (ACLS) Resuscitation
Device
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 75 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 10, 2022 · Synced Oct 11, 2026, 10:18 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

AI-guided Prediction and Treatment of Cardiac Arrest

NCT07452016
View directory record Official record
Conditions
Sudden Cardiac Arrest
Interventions
Machine learning-guided cardiac arrest prediction device
Device
Lead sponsor
MetroHealth Medical Center
Other
Eligibility
18 Years and older
Enrollment
68 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 16, 2026 · Synced Oct 11, 2026, 10:18 AM EDT
Terminated Phase 2 Interventional

Effectiveness of CRD-4730 in Participants With Catecholaminergic Polymorphic Ventricular Tachycardia (CPVT)

NCT06005428
View directory record Official record
Conditions
CPVT1, Heart Defects, Congenital, Heart Diseases, Ventricular Tachycardia
Interventions
CRD-4730, Placebo
Drug
Lead sponsor
Cardurion Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 99 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
3
States / cities
Cincinnati, Ohio • Cleveland, Ohio • Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Oct 11, 2026, 10:18 AM EDT
Completed No phase listed Observational

Medtronic Genetic Arrhythmia Markers for Early Detection (GAME Study)

NCT00664807
View directory record Official record
Conditions
Death, Sudden, Cardiac, Ventricular Fibrillation, Tachycardia, Atrial Fibrillation, Sick Sinus Syndrome
Interventions
Not listed
Lead sponsor
Medtronic Corporate Technologies and New Ventures
Industry
Eligibility
40 Years and older
Enrollment
1,023 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Aug 25, 2009 · Synced Oct 11, 2026, 10:18 AM EDT
Not listed No phase listed Observational

SCD-HeFT 10 Year Follow-up

NCT01058837
View directory record Official record
Conditions
Left Ventricular Systolic Dysfunction, Congestive Heart Failure, Ischemic and Non-ischemic Cardiomyopathy, Sudden Cardiac Death Primary Prevention
Interventions
Not listed
Lead sponsor
Seattle Institute for Cardiac Research
Other
Eligibility
18 Years to 90 Years
Enrollment
1,855 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Bellevue, Washington
Source: ClinicalTrials.gov public record
Updated Feb 11, 2010 · Synced Oct 11, 2026, 10:18 AM EDT
Active, not recruiting Not applicable Interventional

Assessment of Combined CCM and ICD Device in HFrEF

NCT05855135
View directory record Official record
Conditions
Heart Failure, Heart Failure With Reduced Ejection Fraction, Implantable Defibrillator User, CCM Therapy, Non-ischemic Cardiomyopathy, Ischemic Cardiomyopathy, Sudden Cardiac Arrest, Arrhythmias, Cardiac, Ventricular Tachycardia, Ventricular Fibrillation
Interventions
OPTIMIZER® Integra CCM-D System (Treatment Arm)
Device
Lead sponsor
Impulse Dynamics
Industry
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
59
States / cities
Glendale, Arizona • Mesa, Arizona • Phoenix, Arizona + 40 more
Source: ClinicalTrials.gov public record
Updated May 27, 2026 · Synced Oct 11, 2026, 10:18 AM EDT
Completed Phase 2Phase 3 Interventional

Safety and Effectiveness of Cardiac Resynchronization Therapy With Defibrillation

NCT00387803
View directory record Official record
Conditions
Heart Failure, Congestive, Ventricular Fibrillation, Tachycardia, Ventricular
Interventions
Cardiac Resynchronization Therapy with Defibrillation
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
Not listed
Enrollment
581 participants
Timeline
1998 – 2001
U.S. locations
1
States / cities
Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 25, 2007 · Synced Oct 11, 2026, 10:18 AM EDT
Completed Not applicable Interventional Results available

CONNECT Study - Clinical Evaluation Of Remote NotificatioN to rEduCe Time to Clinical Decision

NCT00402246
View directory record Official record
Conditions
Arrhythmia, Tachycardia, Atrial Fibrillation, Ventricular Fibrillation
Interventions
Remote Management, In-Office Care
Other
Lead sponsor
Medtronic Cardiac Rhythm and Heart Failure
Industry
Eligibility
18 Years and older
Enrollment
2,009 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
127
States / cities
Mobile, Alabama • Mesa, Arizona • Scottsdale, Arizona + 124 more
Source: ClinicalTrials.gov public record
Updated Feb 25, 2011 · Synced Oct 11, 2026, 10:18 AM EDT
Completed No phase listed Observational

The Signal-averaged ElectrocArdiogram in Long Term Follow-up of Chronic CHagas Disease - RIO de Janeiro Cohort

NCT01340963
View directory record Official record
Conditions
Chagas Cardiomyopathy, Cardiac Arrhythmia, Stroke, Left Ventricular Function Systolic Dysfunction, Cardiac Death
Interventions
Not listed
Lead sponsor
Universidade Gama Filho
Other
Eligibility
18 Years to 75 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1995 – 2012
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Dec 10, 2013 · Synced Oct 11, 2026, 10:18 AM EDT
Not listed Phase 4 Interventional

Study of Defibrillation Testing In Patients Undergoing Initial ICD Implantation

NCT01905007
View directory record Official record
Conditions
Ventricular Arrhythmias
Interventions
Defibrillation testing
Device
Lead sponsor
The Cooper Health System
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
2
States / cities
Camden, New Jersey • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jul 22, 2013 · Synced Oct 11, 2026, 10:18 AM EDT
Active, not recruiting Not applicable Interventional

PRIMARY Ancillary Substudy

NCT07103733
View directory record Official record
Conditions
Mitral Valve Prolapse, Left Ventricular Fibrosis, Ventricular Arrhythmias
Interventions
Cardiac Magnetic Resonance Imaging, ZioPatch Monitoring, Myocardial Tissue Biopsy
Procedure · Device
Lead sponsor
Annetine Gelijns
Other
Eligibility
60 Years and older
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
16
States / cities
Los Angeles, California • San Francisco, California • Stanford, California + 11 more
Source: ClinicalTrials.gov public record
Updated Sep 8, 2026 · Synced Oct 11, 2026, 10:18 AM EDT
Not yet recruiting Not applicable Interventional

Monitoring for CardioToxicity Using WeArable deVices While Undergoing cancEr Treatments (MCT-WAVE)

NCT07776964
View directory record Official record
Conditions
Cardiotoxicity, Cancer, Cardiac Arrhythmia, Left Ventricular Dysfunction, Breast Cancer, Multiple Myeloma
Interventions
Mobile Cardiac Telemetry, Wearable Cardiac Monitor
Device
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 6, 2026 · Synced Oct 11, 2026, 10:18 AM EDT
Enrolling by invitation Phase 4 Interventional

Comparing Immune System Suppression to Medication for Unexplained Heart Function and Irregular Heartbeat

NCT06635863
View directory record Official record
Conditions
Ventricular Arrythmia, Non-ischemic Cardiomyopathy, Arrhythmogenic Inflammatory Cardiomyopathy
Interventions
Prednisone 40mg
Drug
Lead sponsor
Roderick Tung
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 27, 2026 · Synced Oct 11, 2026, 10:18 AM EDT
Enrolling by invitation No phase listed Observational

Virtual Reality in Electrophysiology Laboratory (EP)

NCT04893278
View directory record Official record
Conditions
PVC - Premature Ventricular Complex, Ablation
Interventions
Virtual reality
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Jan 21, 2026 · Synced Oct 11, 2026, 10:18 AM EDT
Completed No phase listed Observational

A Study to Determine the Feasibility of Wireless Electrocardiography

NCT02162394
View directory record Official record
Conditions
Atrial Fibrillation, Premature Atrial and Ventricular Beats, Conduction Defects, Normal Sinus Rhythm
Interventions
Observational ambulatory ECG monitoring
Device
Lead sponsor
Peerbridge Health, Inc
Industry
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 25, 2017 · Synced Oct 11, 2026, 10:18 AM EDT
Terminated Not applicable Interventional

STandardized Ultra-conservative Or Physician-directed ICD Programming for Continuous Flow LVAD Support

NCT04264182
View directory record Official record
Conditions
Heart Failure, Systolic, Left Ventricular Assist Device, ICD
Interventions
ICD programming
Other
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 8, 2022 · Synced Oct 11, 2026, 10:18 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Development of CIRC Technologies

NCT05654272
View directory record Official record
Conditions
Cardiovascular Diseases, Heart Failure, Ischemic Heart Disease, Non-ischemic Cardiomyopathy, Valvular Heart Disease, Metabolic Cardiomyopathy, Congenital Heart Disease, Aortic Diseases, Atrial Fibrillation, Ventricular Fibrillation
Interventions
MRI
Diagnostic Test
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2042
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated May 8, 2026 · Synced Oct 11, 2026, 10:18 AM EDT